Cryogenic Trap / ColdTrap / Cold Trap Gas Chromatography

Cryogenic cold trapping is frequently used for narrowing the chromatographic band and improving the detection limit. When trapped, analytes must be released from the trap using a highly accurate and very fast heating ensuring that they are introduced onto the column in a very sharp band. This results in better detection limit and better resolution.

Increase in Sensitivity

With CryoFocus-4 analytes are focused at the head or end of the column by cooling its selected section to sub-ambient temperature. After re-focusing, the analytes are released from the trap in a very narrow band using an extreme fast heating rate of 60 °C/second. As a result, very sharp peaks with a high signal to noise ratio are obtained.

LN2 cooling for cryotrap Operating using direct LN2 or CO2
trap for gc Temperature range:  -180 °C to 350 °C
trap for gc Temperature stabilaty at low temperature:  ±3 °C
fast heating cryotrap Heating ramp rate: 1 to 60 °C/sec
cold trapping gc Cool down time:  2-3 minutes
universal cryotrap Integrated in OPTIC-4 or as stand alone
trap Compatible with any GC
cryo focus Software controlled by ATAS Evolution Workstation 

cryotrap cold trapping
Figure shows the importance of the trap ramp rate.
cryotrap in GC














 VOC's in water
VOCs in water

  CryoTrap
cryotrap

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